1 /* gfortran header file
2 Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
3 Free Software Foundation, Inc.
4 Contributed by Andy Vaught
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 3, or (at your option) any later
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING3. If not see
20 <http://www.gnu.org/licenses/>. */
22 #ifndef GCC_GFORTRAN_H
23 #define GCC_GFORTRAN_H
25 /* It's probably insane to have this large of a header file, but it
26 seemed like everything had to be recompiled anyway when a change
27 was made to a header file, and there were ordering issues with
28 multiple header files. Besides, Microsoft's winnt.h was 250k last
29 time I looked, so by comparison this is perfectly reasonable. */
31 /* Declarations common to the front-end and library are put in
32 libgfortran/libgfortran_frontend.h */
33 #include "libgfortran.h"
38 #include "coretypes.h"
40 #include "splay-tree.h"
41 /* The following ifdefs are recommended by the autoconf documentation
42 for any code using alloca. */
44 /* AIX requires this to be the first thing in the file. */
46 #else /* not __GNUC__ */
49 #else /* do not HAVE_ALLOCA_H */
53 #ifndef alloca /* predefined by HP cc +Olibcalls */
55 #endif /* not predefined */
57 #endif /* do not HAVE_ALLOCA_H */
58 #endif /* not __GNUC__ */
60 /* Major control parameters. */
62 #define GFC_MAX_SYMBOL_LEN 63 /* Must be at least 63 for F2003. */
63 #define GFC_MAX_BINDING_LABEL_LEN 126 /* (2 * GFC_MAX_SYMBOL_LEN) */
64 #define GFC_MAX_LINE 132 /* Characters beyond this are not seen. */
65 #define GFC_LETTERS 26 /* Number of letters in the alphabet. */
67 #define MAX_SUBRECORD_LENGTH 2147483639 /* 2**31-9 */
70 #define free(x) Use_gfc_free_instead_of_free()
71 #define gfc_is_whitespace(c) ((c==' ') || (c=='\t'))
74 #define NULL ((void *) 0)
78 #define stringize(x) expand_macro(x)
79 #define expand_macro(x) # x
81 /* For the runtime library, a standard prefix is a requirement to
82 avoid cluttering the namespace with things nobody asked for. It's
83 ugly to look at and a pain to type when you add the prefix by hand,
84 so we hide it behind a macro. */
85 #define PREFIX(x) "_gfortran_" x
88 #define BLANK_COMMON_NAME "__BLNK__"
90 /* Macro to initialize an mstring structure. */
91 #define minit(s, t) { s, NULL, t }
93 /* Structure for storing strings to be matched by gfc_match_string. */
104 /*************************** Enums *****************************/
106 /* Used when matching and resolving data I/O transfer statements. */
109 { M_READ, M_WRITE, M_PRINT, M_INQUIRE }
112 /* The author remains confused to this day about the convention of
113 returning '0' for 'SUCCESS'... or was it the other way around? The
114 following enum makes things much more readable. We also start
115 values off at one instead of zero. */
118 { SUCCESS = 1, FAILURE }
121 /* This is returned by gfc_notification_std to know if, given the flags
122 that were given (-std=, -pedantic) we should issue an error, a warning
126 { SILENT, WARNING, ERROR }
129 /* Matchers return one of these three values. The difference between
130 MATCH_NO and MATCH_ERROR is that MATCH_ERROR means that a match was
131 successful, but that something non-syntactic is wrong and an error
132 has already been issued. */
135 { MATCH_NO = 1, MATCH_YES, MATCH_ERROR }
139 { FORM_FREE, FORM_FIXED, FORM_UNKNOWN }
142 /* Basic types. BT_VOID is used by ISO C Binding so funcs like c_f_pointer
143 can take any arg with the pointer attribute as a param. */
145 { BT_UNKNOWN = 1, BT_INTEGER, BT_REAL, BT_COMPLEX,
146 BT_LOGICAL, BT_CHARACTER, BT_DERIVED, BT_PROCEDURE, BT_HOLLERITH,
151 /* Expression node types. */
153 { EXPR_OP = 1, EXPR_FUNCTION, EXPR_CONSTANT, EXPR_VARIABLE,
154 EXPR_SUBSTRING, EXPR_STRUCTURE, EXPR_ARRAY, EXPR_NULL, EXPR_COMPCALL, EXPR_PPC
160 { AS_EXPLICIT = 1, AS_ASSUMED_SHAPE, AS_DEFERRED,
161 AS_ASSUMED_SIZE, AS_UNKNOWN
166 { AR_FULL = 1, AR_ELEMENT, AR_SECTION, AR_UNKNOWN }
169 /* Statement label types. */
171 { ST_LABEL_UNKNOWN = 1, ST_LABEL_TARGET,
172 ST_LABEL_BAD_TARGET, ST_LABEL_FORMAT
176 /* Intrinsic operators. */
178 { GFC_INTRINSIC_BEGIN = 0,
179 INTRINSIC_NONE = -1, INTRINSIC_UPLUS = GFC_INTRINSIC_BEGIN,
180 INTRINSIC_UMINUS, INTRINSIC_PLUS, INTRINSIC_MINUS, INTRINSIC_TIMES,
181 INTRINSIC_DIVIDE, INTRINSIC_POWER, INTRINSIC_CONCAT,
182 INTRINSIC_AND, INTRINSIC_OR, INTRINSIC_EQV, INTRINSIC_NEQV,
183 /* ==, /=, >, >=, <, <= */
184 INTRINSIC_EQ, INTRINSIC_NE, INTRINSIC_GT, INTRINSIC_GE,
185 INTRINSIC_LT, INTRINSIC_LE,
186 /* .EQ., .NE., .GT., .GE., .LT., .LE. (OS = Old-Style) */
187 INTRINSIC_EQ_OS, INTRINSIC_NE_OS, INTRINSIC_GT_OS, INTRINSIC_GE_OS,
188 INTRINSIC_LT_OS, INTRINSIC_LE_OS,
189 INTRINSIC_NOT, INTRINSIC_USER, INTRINSIC_ASSIGN,
190 INTRINSIC_PARENTHESES, GFC_INTRINSIC_END /* Sentinel */
195 /* This macro is the number of intrinsic operators that exist.
196 Assumptions are made about the numbering of the interface_op enums. */
197 #define GFC_INTRINSIC_OPS GFC_INTRINSIC_END
199 /* Arithmetic results. */
201 { ARITH_OK = 1, ARITH_OVERFLOW, ARITH_UNDERFLOW, ARITH_NAN,
202 ARITH_DIV0, ARITH_INCOMMENSURATE, ARITH_ASYMMETRIC, ARITH_PROHIBIT
209 ST_ARITHMETIC_IF, ST_ALLOCATE, ST_ATTR_DECL, ST_BACKSPACE, ST_BLOCK_DATA,
210 ST_CALL, ST_CASE, ST_CLOSE, ST_COMMON, ST_CONTINUE, ST_CONTAINS, ST_CYCLE,
211 ST_DATA, ST_DATA_DECL, ST_DEALLOCATE, ST_DO, ST_ELSE, ST_ELSEIF,
212 ST_ELSEWHERE, ST_END_BLOCK_DATA, ST_ENDDO, ST_IMPLIED_ENDDO,
213 ST_END_FILE, ST_FINAL, ST_FLUSH, ST_END_FORALL, ST_END_FUNCTION, ST_ENDIF,
214 ST_END_INTERFACE, ST_END_MODULE, ST_END_PROGRAM, ST_END_SELECT,
215 ST_END_SUBROUTINE, ST_END_WHERE, ST_END_TYPE, ST_ENTRY, ST_EQUIVALENCE,
216 ST_EXIT, ST_FORALL, ST_FORALL_BLOCK, ST_FORMAT, ST_FUNCTION, ST_GOTO,
217 ST_IF_BLOCK, ST_IMPLICIT, ST_IMPLICIT_NONE, ST_IMPORT, ST_INQUIRE, ST_INTERFACE,
218 ST_PARAMETER, ST_MODULE, ST_MODULE_PROC, ST_NAMELIST, ST_NULLIFY, ST_OPEN,
219 ST_PAUSE, ST_PRIVATE, ST_PROGRAM, ST_PUBLIC, ST_READ, ST_RETURN, ST_REWIND,
220 ST_STOP, ST_SUBROUTINE, ST_TYPE, ST_USE, ST_WHERE_BLOCK, ST_WHERE, ST_WAIT,
221 ST_WRITE, ST_ASSIGNMENT, ST_POINTER_ASSIGNMENT, ST_SELECT_CASE, ST_SEQUENCE,
222 ST_SIMPLE_IF, ST_STATEMENT_FUNCTION, ST_DERIVED_DECL, ST_LABEL_ASSIGNMENT,
223 ST_ENUM, ST_ENUMERATOR, ST_END_ENUM,
224 ST_OMP_ATOMIC, ST_OMP_BARRIER, ST_OMP_CRITICAL, ST_OMP_END_CRITICAL,
225 ST_OMP_END_DO, ST_OMP_END_MASTER, ST_OMP_END_ORDERED, ST_OMP_END_PARALLEL,
226 ST_OMP_END_PARALLEL_DO, ST_OMP_END_PARALLEL_SECTIONS,
227 ST_OMP_END_PARALLEL_WORKSHARE, ST_OMP_END_SECTIONS, ST_OMP_END_SINGLE,
228 ST_OMP_END_WORKSHARE, ST_OMP_DO, ST_OMP_FLUSH, ST_OMP_MASTER, ST_OMP_ORDERED,
229 ST_OMP_PARALLEL, ST_OMP_PARALLEL_DO, ST_OMP_PARALLEL_SECTIONS,
230 ST_OMP_PARALLEL_WORKSHARE, ST_OMP_SECTIONS, ST_OMP_SECTION, ST_OMP_SINGLE,
231 ST_OMP_THREADPRIVATE, ST_OMP_WORKSHARE, ST_OMP_TASK, ST_OMP_END_TASK,
232 ST_OMP_TASKWAIT, ST_PROCEDURE, ST_GENERIC,
233 ST_GET_FCN_CHARACTERISTICS, ST_NONE
238 /* Types of interfaces that we can have. Assignment interfaces are
239 considered to be intrinsic operators. */
242 INTERFACE_NAMELESS = 1, INTERFACE_GENERIC,
243 INTERFACE_INTRINSIC_OP, INTERFACE_USER_OP, INTERFACE_ABSTRACT
247 /* Symbol flavors: these are all mutually exclusive.
248 10 elements = 4 bits. */
249 typedef enum sym_flavor
251 FL_UNKNOWN = 0, FL_PROGRAM, FL_BLOCK_DATA, FL_MODULE, FL_VARIABLE,
252 FL_PARAMETER, FL_LABEL, FL_PROCEDURE, FL_DERIVED, FL_NAMELIST,
257 /* Procedure types. 7 elements = 3 bits. */
258 typedef enum procedure_type
259 { PROC_UNKNOWN, PROC_MODULE, PROC_INTERNAL, PROC_DUMMY,
260 PROC_INTRINSIC, PROC_ST_FUNCTION, PROC_EXTERNAL
265 typedef enum sym_intent
266 { INTENT_UNKNOWN = 0, INTENT_IN, INTENT_OUT, INTENT_INOUT
271 typedef enum gfc_access
272 { ACCESS_UNKNOWN = 0, ACCESS_PUBLIC, ACCESS_PRIVATE
276 /* Flags to keep track of where an interface came from.
277 3 elements = 2 bits. */
279 { IFSRC_UNKNOWN = 0, /* Interface unknown, only return type may be known. */
280 IFSRC_DECL, /* FUNCTION or SUBROUTINE declaration. */
281 IFSRC_IFBODY /* INTERFACE statement or PROCEDURE statement
282 with explicit interface. */
286 /* Whether a SAVE attribute was set explicitly or implicitly. */
287 typedef enum save_state
288 { SAVE_NONE = 0, SAVE_EXPLICIT, SAVE_IMPLICIT
292 /* Strings for all symbol attributes. We use these for dumping the
293 parse tree, in error messages, and also when reading and writing
294 modules. In symbol.c. */
295 extern const mstring flavors[];
296 extern const mstring procedures[];
297 extern const mstring intents[];
298 extern const mstring access_types[];
299 extern const mstring ifsrc_types[];
300 extern const mstring save_status[];
302 /* Enumeration of all the generic intrinsic functions. Used by the
303 backend for identification of a function. */
307 /* GFC_ISYM_NONE is used for intrinsics which will never be seen by
308 the backend (e.g. KIND). */
339 GFC_ISYM_COMMAND_ARGUMENT_COUNT,
349 GFC_ISYM_DATE_AND_TIME,
353 GFC_ISYM_DOT_PRODUCT,
360 GFC_ISYM_ERFC_SCALED,
381 GFC_ISYM_GET_COMMAND,
382 GFC_ISYM_GET_COMMAND_ARGUMENT,
385 GFC_ISYM_GET_ENVIRONMENT_VARIABLE,
411 GFC_ISYM_IS_IOSTAT_END,
412 GFC_ISYM_IS_IOSTAT_EOR,
443 GFC_ISYM_MAXEXPONENT,
450 GFC_ISYM_MINEXPONENT,
470 GFC_ISYM_RANDOM_NUMBER,
471 GFC_ISYM_RANDOM_SEED,
484 GFC_ISYM_SET_EXPONENT,
504 GFC_ISYM_SYSTEM_CLOCK,
525 typedef enum gfc_isym_id gfc_isym_id;
530 GFC_INIT_REAL_OFF = 0,
535 GFC_INIT_REAL_NEG_INF
541 GFC_INIT_LOGICAL_OFF = 0,
542 GFC_INIT_LOGICAL_FALSE,
543 GFC_INIT_LOGICAL_TRUE
549 GFC_INIT_CHARACTER_OFF = 0,
550 GFC_INIT_CHARACTER_ON
552 init_local_character;
556 GFC_INIT_INTEGER_OFF = 0,
561 /************************* Structures *****************************/
563 /* Used for keeping things in balanced binary trees. */
564 #define BBT_HEADER(self) int priority; struct self *left, *right
566 #define NAMED_INTCST(a,b,c,d) a,
569 ISOFORTRANENV_INVALID = -1,
570 #include "iso-fortran-env.def"
571 ISOFORTRANENV_LAST, ISOFORTRANENV_NUMBER = ISOFORTRANENV_LAST
573 iso_fortran_env_symbol;
576 #define NAMED_INTCST(a,b,c,d) a,
577 #define NAMED_REALCST(a,b,c) a,
578 #define NAMED_CMPXCST(a,b,c) a,
579 #define NAMED_LOGCST(a,b,c) a,
580 #define NAMED_CHARKNDCST(a,b,c) a,
581 #define NAMED_CHARCST(a,b,c) a,
582 #define DERIVED_TYPE(a,b,c) a,
583 #define PROCEDURE(a,b) a,
586 ISOCBINDING_INVALID = -1,
587 #include "iso-c-binding.def"
589 ISOCBINDING_NUMBER = ISOCBINDING_LAST
591 iso_c_binding_symbol;
596 #undef NAMED_CHARKNDCST
603 INTMOD_NONE = 0, INTMOD_ISO_FORTRAN_ENV, INTMOD_ISO_C_BINDING
609 char name[GFC_MAX_SYMBOL_LEN + 1];
610 int value; /* Used for both integer and character values. */
615 /* Array of structs, where the structs represent the C interop kinds.
616 The list will be implemented based on a hash of the kind name since
617 these could be accessed multiple times.
618 Declared in trans-types.c as a global, since it's in that file
619 that the list is initialized. */
620 extern CInteropKind_t c_interop_kinds_table[];
623 /* Structure and list of supported extension attributes. */
626 EXT_ATTR_DLLIMPORT = 0,
631 EXT_ATTR_LAST, EXT_ATTR_NUM = EXT_ATTR_LAST
639 const char *middle_end_name;
643 extern const ext_attr_t ext_attr_list[];
645 /* Symbol attribute structure. */
648 /* Variable attributes. */
649 unsigned allocatable:1, dimension:1, external:1, intrinsic:1,
650 optional:1, pointer:1, target:1, value:1, volatile_:1, temporary:1,
651 dummy:1, result:1, assign:1, threadprivate:1, not_always_present:1,
652 implied_index:1, subref_array_pointer:1, proc_pointer:1;
654 ENUM_BITFIELD (save_state) save:2;
656 unsigned data:1, /* Symbol is named in a DATA statement. */
657 is_protected:1, /* Symbol has been marked as protected. */
658 use_assoc:1, /* Symbol has been use-associated. */
659 use_only:1, /* Symbol has been use-associated, with ONLY. */
660 use_rename:1, /* Symbol has been use-associated and renamed. */
661 imported:1; /* Symbol has been associated by IMPORT. */
663 unsigned in_namelist:1, in_common:1, in_equivalence:1;
664 unsigned function:1, subroutine:1, procedure:1;
665 unsigned generic:1, generic_copy:1;
666 unsigned implicit_type:1; /* Type defined via implicit rules. */
667 unsigned untyped:1; /* No implicit type could be found. */
669 unsigned is_bind_c:1; /* say if is bound to C. */
670 unsigned extension:1; /* extends a derived type. */
672 /* These flags are both in the typespec and attribute. The attribute
673 list is what gets read from/written to a module file. The typespec
674 is created from a decl being processed. */
675 unsigned is_c_interop:1; /* It's c interoperable. */
676 unsigned is_iso_c:1; /* Symbol is from iso_c_binding. */
678 /* Function/subroutine attributes */
679 unsigned sequence:1, elemental:1, pure:1, recursive:1;
680 unsigned unmaskable:1, masked:1, contained:1, mod_proc:1, abstract:1;
682 /* This is set if the subroutine doesn't return. Currently, this
683 is only possible for intrinsic subroutines. */
686 /* Set if this procedure is an alternate entry point. These procedures
687 don't have any code associated, and the backend will turn them into
688 thunks to the master function. */
691 /* Set if this is the master function for a procedure with multiple
693 unsigned entry_master:1;
695 /* Set if this is the master function for a function with multiple
696 entry points where characteristics of the entry points differ. */
697 unsigned mixed_entry_master:1;
699 /* Set if a function must always be referenced by an explicit interface. */
700 unsigned always_explicit:1;
702 /* Set if the symbol has been referenced in an expression. No further
703 modification of type or type parameters is permitted. */
704 unsigned referenced:1;
706 /* Set if the symbol has ambiguous interfaces. */
707 unsigned ambiguous_interfaces:1;
709 /* Set if this is the symbol for the main program. */
710 unsigned is_main_program:1;
712 /* Mutually exclusive multibit attributes. */
713 ENUM_BITFIELD (gfc_access) access:2;
714 ENUM_BITFIELD (sym_intent) intent:2;
715 ENUM_BITFIELD (sym_flavor) flavor:4;
716 ENUM_BITFIELD (ifsrc) if_source:2;
718 ENUM_BITFIELD (procedure_type) proc:3;
720 /* Special attributes for Cray pointers, pointees. */
721 unsigned cray_pointer:1, cray_pointee:1;
723 /* The symbol is a derived type with allocatable components, pointer
724 components or private components, procedure pointer components,
725 possibly nested. zero_comp is true if the derived type has no
727 unsigned alloc_comp:1, pointer_comp:1, proc_pointer_comp:1,
728 private_comp:1, zero_comp:1;
730 /* Attributes set by compiler extensions (!GCC$ ATTRIBUTES). */
731 unsigned ext_attr:EXT_ATTR_NUM;
733 /* The namespace where the VOLATILE attribute has been set. */
734 struct gfc_namespace *volatile_ns;
739 /* We need to store source lines as sequences of multibyte source
740 characters. We define here a type wide enough to hold any multibyte
741 source character, just like libcpp does. A 32-bit type is enough. */
743 #if HOST_BITS_PER_INT >= 32
744 typedef unsigned int gfc_char_t;
745 #elif HOST_BITS_PER_LONG >= 32
746 typedef unsigned long gfc_char_t;
747 #elif defined(HAVE_LONG_LONG) && (HOST_BITS_PER_LONGLONG >= 32)
748 typedef unsigned long long gfc_char_t;
750 # error "Cannot find an integer type with at least 32 bits"
754 /* The following three structures are used to identify a location in
757 gfc_file is used to maintain a tree of the source files and how
758 they include each other
760 gfc_linebuf holds a single line of source code and information
761 which file it resides in
763 locus point to the sourceline and the character in the source
767 typedef struct gfc_file
769 struct gfc_file *next, *up;
770 int inclusion_line, line;
774 typedef struct gfc_linebuf
776 source_location location;
777 struct gfc_file *file;
778 struct gfc_linebuf *next;
786 #define gfc_linebuf_header_size (offsetof (gfc_linebuf, line))
788 #define gfc_linebuf_linenum(LBUF) (LOCATION_LINE ((LBUF)->location))
796 /* In order for the "gfc" format checking to work correctly, you must
797 have declared a typedef locus first. */
798 #if GCC_VERSION >= 4001
799 #define ATTRIBUTE_GCC_GFC(m, n) __attribute__ ((__format__ (__gcc_gfc__, m, n))) ATTRIBUTE_NONNULL(m)
801 #define ATTRIBUTE_GCC_GFC(m, n) ATTRIBUTE_NONNULL(m)
805 /* Suppress error messages or re-enable them. */
807 void gfc_push_suppress_errors (void);
808 void gfc_pop_suppress_errors (void);
811 /* Character length structures hold the expression that gives the
812 length of a character variable. We avoid putting these into
813 gfc_typespec because doing so prevents us from doing structure
814 copies and forces us to deallocate any typespecs we create, as well
815 as structures that contain typespecs. They also can have multiple
816 character typespecs pointing to them.
818 These structures form a singly linked list within the current
819 namespace and are deallocated with the namespace. It is possible to
820 end up with gfc_charlen structures that have nothing pointing to them. */
822 typedef struct gfc_charlen
824 struct gfc_expr *length;
825 struct gfc_charlen *next;
826 bool length_from_typespec; /* Length from explicit array ctor typespec? */
828 tree passed_length; /* Length argument explicitelly passed. */
834 #define gfc_get_charlen() XCNEW (gfc_charlen)
836 /* Type specification structure. */
844 struct gfc_symbol *derived; /* For derived types only. */
845 gfc_charlen *cl; /* For character types only. */
849 struct gfc_symbol *interface; /* For PROCEDURE declarations. */
850 unsigned int is_class:1;
857 /* Array specification. */
860 int rank; /* A rank of zero means that a variable is a scalar. */
862 struct gfc_expr *lower[GFC_MAX_DIMENSIONS], *upper[GFC_MAX_DIMENSIONS];
864 /* These two fields are used with the Cray Pointer extension. */
865 bool cray_pointee; /* True iff this spec belongs to a cray pointee. */
866 bool cp_was_assumed; /* AS_ASSUMED_SIZE cp arrays are converted to
867 AS_EXPLICIT, but we want to remember that we
873 #define gfc_get_array_spec() XCNEW (gfc_array_spec)
876 /* Components of derived types. */
877 typedef struct gfc_component
882 symbol_attribute attr;
887 struct gfc_expr *initializer;
888 struct gfc_component *next;
890 /* Needed for procedure pointer components. */
891 struct gfc_formal_arglist *formal;
892 struct gfc_namespace *formal_ns;
893 struct gfc_typebound_proc *tb;
897 #define gfc_get_component() XCNEW (gfc_component)
899 /* Formal argument lists are lists of symbols. */
900 typedef struct gfc_formal_arglist
902 /* Symbol representing the argument at this position in the arglist. */
903 struct gfc_symbol *sym;
904 /* Points to the next formal argument. */
905 struct gfc_formal_arglist *next;
909 #define gfc_get_formal_arglist() XCNEW (gfc_formal_arglist)
912 /* The gfc_actual_arglist structure is for actual arguments. */
913 typedef struct gfc_actual_arglist
916 /* Alternate return label when the expr member is null. */
917 struct gfc_st_label *label;
919 /* This is set to the type of an eventual omitted optional
920 argument. This is used to determine if a hidden string length
921 argument has to be added to a function call. */
924 struct gfc_expr *expr;
925 struct gfc_actual_arglist *next;
929 #define gfc_get_actual_arglist() XCNEW (gfc_actual_arglist)
932 /* Because a symbol can belong to multiple namelists, they must be
933 linked externally to the symbol itself. */
934 typedef struct gfc_namelist
936 struct gfc_symbol *sym;
937 struct gfc_namelist *next;
941 #define gfc_get_namelist() XCNEW (gfc_namelist)
946 OMP_LIST_FIRSTPRIVATE,
947 OMP_LIST_LASTPRIVATE,
948 OMP_LIST_COPYPRIVATE,
952 OMP_LIST_REDUCTION_FIRST = OMP_LIST_PLUS,
964 OMP_LIST_REDUCTION_LAST = OMP_LIST_IEOR,
968 /* Because a symbol can belong to multiple namelists, they must be
969 linked externally to the symbol itself. */
971 enum gfc_omp_sched_kind
981 enum gfc_omp_default_sharing
987 OMP_DEFAULT_FIRSTPRIVATE
990 typedef struct gfc_omp_clauses
992 struct gfc_expr *if_expr;
993 struct gfc_expr *num_threads;
994 gfc_namelist *lists[OMP_LIST_NUM];
995 enum gfc_omp_sched_kind sched_kind;
996 struct gfc_expr *chunk_size;
997 enum gfc_omp_default_sharing default_sharing;
999 bool nowait, ordered, untied;
1003 #define gfc_get_omp_clauses() XCNEW (gfc_omp_clauses)
1006 /* The gfc_st_label structure is a BBT attached to a namespace that
1007 records the usage of statement labels within that space. */
1009 typedef struct gfc_st_label
1011 BBT_HEADER(gfc_st_label);
1015 gfc_sl_type defined, referenced;
1017 struct gfc_expr *format;
1026 /* gfc_interface()-- Interfaces are lists of symbols strung together. */
1027 typedef struct gfc_interface
1029 struct gfc_symbol *sym;
1031 struct gfc_interface *next;
1035 #define gfc_get_interface() XCNEW (gfc_interface)
1037 /* User operator nodes. These are like stripped down symbols. */
1043 struct gfc_namespace *ns;
1049 /* A list of specific bindings that are associated with a generic spec. */
1050 typedef struct gfc_tbp_generic
1052 /* The parser sets specific_st, upon resolution we look for the corresponding
1053 gfc_typebound_proc and set specific for further use. */
1054 struct gfc_symtree* specific_st;
1055 struct gfc_typebound_proc* specific;
1057 struct gfc_tbp_generic* next;
1061 #define gfc_get_tbp_generic() XCNEW (gfc_tbp_generic)
1064 /* Data needed for type-bound procedures. */
1065 typedef struct gfc_typebound_proc
1067 locus where; /* Where the PROCEDURE/GENERIC definition was. */
1071 struct gfc_symtree* specific; /* The interface if DEFERRED. */
1072 gfc_tbp_generic* generic;
1077 const char* pass_arg; /* Argument-name for PASS. NULL if not specified. */
1079 /* The overridden type-bound proc (or GENERIC with this name in the
1080 parent-type) or NULL if non. */
1081 struct gfc_typebound_proc* overridden;
1083 /* Once resolved, we use the position of pass_arg in the formal arglist of
1084 the binding-target procedure to identify it. The first argument has
1085 number 1 here, the second 2, and so on. */
1086 unsigned pass_arg_num;
1088 unsigned nopass:1; /* Whether we have NOPASS (PASS otherwise). */
1089 unsigned non_overridable:1;
1090 unsigned deferred:1;
1091 unsigned is_generic:1;
1092 unsigned function:1, subroutine:1;
1093 unsigned error:1; /* Ignore it, when an error occurred during resolution. */
1099 /* Symbol nodes. These are important things. They are what the
1100 standard refers to as "entities". The possibly multiple names that
1101 refer to the same entity are accomplished by a binary tree of
1102 symtree structures that is balanced by the red-black method-- more
1103 than one symtree node can point to any given symbol. */
1105 typedef struct gfc_symbol
1107 const char *name; /* Primary name, before renaming */
1108 const char *module; /* Module this symbol came from */
1112 symbol_attribute attr;
1114 /* The formal member points to the formal argument list if the
1115 symbol is a function or subroutine name. If the symbol is a
1116 generic name, the generic member points to the list of
1119 gfc_interface *generic;
1120 gfc_access component_access;
1122 gfc_formal_arglist *formal;
1123 struct gfc_namespace *formal_ns;
1124 struct gfc_namespace *f2k_derived;
1126 struct gfc_expr *value; /* Parameter/Initializer value */
1128 struct gfc_symbol *result; /* function result symbol */
1129 gfc_component *components; /* Derived type components */
1131 /* Defined only for Cray pointees; points to their pointer. */
1132 struct gfc_symbol *cp_pointer;
1134 struct gfc_symbol *common_next; /* Links for COMMON syms */
1136 /* This is in fact a gfc_common_head but it is only used for pointer
1137 comparisons to check if symbols are in the same common block. */
1138 struct gfc_common_head* common_head;
1140 /* Make sure setup code for dummy arguments is generated in the correct
1146 gfc_namelist *namelist, *namelist_tail;
1148 /* Change management fields. Symbols that might be modified by the
1149 current statement have the mark member nonzero and are kept in a
1150 singly linked list through the tlink field. Of these symbols,
1151 symbols with old_symbol equal to NULL are symbols created within
1152 the current statement. Otherwise, old_symbol points to a copy of
1155 struct gfc_symbol *old_symbol, *tlink;
1156 unsigned mark:1, gfc_new:1;
1157 /* Nonzero if all equivalences associated with this symbol have been
1159 unsigned equiv_built:1;
1160 /* Set if this variable is used as an index name in a FORALL. */
1161 unsigned forall_index:1;
1163 struct gfc_namespace *ns; /* namespace containing this symbol */
1167 /* Identity of the intrinsic module the symbol comes from, or
1168 INTMOD_NONE if it's not imported from a intrinsic module. */
1169 intmod_id from_intmod;
1170 /* Identity of the symbol from intrinsic modules, from enums maintained
1171 separately by each intrinsic module. Used together with from_intmod,
1172 it uniquely identifies a symbol from an intrinsic module. */
1175 /* This may be repetitive, since the typespec now has a binding
1177 char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
1178 /* Store a reference to the common_block, if this symbol is in one. */
1179 struct gfc_common_head *common_block;
1184 /* This structure is used to keep track of symbols in common blocks. */
1185 typedef struct gfc_common_head
1188 char use_assoc, saved, threadprivate;
1189 char name[GFC_MAX_SYMBOL_LEN + 1];
1190 struct gfc_symbol *head;
1191 char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
1196 #define gfc_get_common_head() XCNEW (gfc_common_head)
1199 /* A list of all the alternate entry points for a procedure. */
1201 typedef struct gfc_entry_list
1203 /* The symbol for this entry point. */
1205 /* The zero-based id of this entry point. */
1207 /* The LABEL_EXPR marking this entry point. */
1209 /* The next item in the list. */
1210 struct gfc_entry_list *next;
1214 #define gfc_get_entry_list() \
1215 (gfc_entry_list *) gfc_getmem(sizeof(gfc_entry_list))
1217 /* Lists of rename info for the USE statement. */
1219 typedef struct gfc_use_rename
1221 char local_name[GFC_MAX_SYMBOL_LEN + 1], use_name[GFC_MAX_SYMBOL_LEN + 1];
1222 struct gfc_use_rename *next;
1224 gfc_intrinsic_op op;
1229 #define gfc_get_use_rename() XCNEW (gfc_use_rename);
1231 /* A list of all USE statements in a namespace. */
1233 typedef struct gfc_use_list
1235 const char *module_name;
1237 struct gfc_use_rename *rename;
1239 /* Next USE statement. */
1240 struct gfc_use_list *next;
1244 #define gfc_get_use_list() \
1245 (gfc_use_list *) gfc_getmem(sizeof(gfc_use_list))
1247 /* Within a namespace, symbols are pointed to by symtree nodes that
1248 are linked together in a balanced binary tree. There can be
1249 several symtrees pointing to the same symbol node via USE
1252 typedef struct gfc_symtree
1254 BBT_HEADER (gfc_symtree);
1259 gfc_symbol *sym; /* Symbol associated with this node */
1261 gfc_common_head *common;
1262 gfc_typebound_proc *tb;
1268 /* A linked list of derived types in the namespace. */
1269 typedef struct gfc_dt_list
1271 struct gfc_symbol *derived;
1272 struct gfc_dt_list *next;
1276 #define gfc_get_dt_list() XCNEW (gfc_dt_list)
1278 /* A list of all derived types. */
1279 extern gfc_dt_list *gfc_derived_types;
1281 /* A namespace describes the contents of procedure, module or
1283 /* ??? Anything else use these? */
1285 typedef struct gfc_namespace
1287 /* Tree containing all the symbols in this namespace. */
1288 gfc_symtree *sym_root;
1289 /* Tree containing all the user-defined operators in the namespace. */
1290 gfc_symtree *uop_root;
1291 /* Tree containing all the common blocks. */
1292 gfc_symtree *common_root;
1294 /* Tree containing type-bound procedures. */
1295 gfc_symtree *tb_sym_root;
1296 /* Type-bound user operators. */
1297 gfc_symtree *tb_uop_root;
1298 /* For derived-types, store type-bound intrinsic operators here. */
1299 gfc_typebound_proc *tb_op[GFC_INTRINSIC_OPS];
1300 /* Linked list of finalizer procedures. */
1301 struct gfc_finalizer *finalizers;
1303 /* If set_flag[letter] is set, an implicit type has been set for letter. */
1304 int set_flag[GFC_LETTERS];
1305 /* Keeps track of the implicit types associated with the letters. */
1306 gfc_typespec default_type[GFC_LETTERS];
1307 /* Store the positions of IMPLICIT statements. */
1308 locus implicit_loc[GFC_LETTERS];
1310 /* If this is a namespace of a procedure, this points to the procedure. */
1311 struct gfc_symbol *proc_name;
1312 /* If this is the namespace of a unit which contains executable
1313 code, this points to it. */
1314 struct gfc_code *code;
1316 /* Points to the equivalences set up in this namespace. */
1317 struct gfc_equiv *equiv;
1319 /* Points to the equivalence groups produced by trans_common. */
1320 struct gfc_equiv_list *equiv_lists;
1322 gfc_interface *op[GFC_INTRINSIC_OPS];
1324 /* Points to the parent namespace, i.e. the namespace of a module or
1325 procedure in which the procedure belonging to this namespace is
1326 contained. The parent namespace points to this namespace either
1327 directly via CONTAINED, or indirectly via the chain built by
1329 struct gfc_namespace *parent;
1330 /* CONTAINED points to the first contained namespace. Sibling
1331 namespaces are chained via SIBLING. */
1332 struct gfc_namespace *contained, *sibling;
1334 gfc_common_head blank_common;
1335 gfc_access default_access, operator_access[GFC_INTRINSIC_OPS];
1337 gfc_st_label *st_labels;
1338 /* This list holds information about all the data initializers in
1340 struct gfc_data *data;
1342 gfc_charlen *cl_list, *old_cl_list;
1344 gfc_dt_list *derived_types;
1346 int save_all, seen_save, seen_implicit_none;
1348 /* Normally we don't need to refcount namespaces. However when we read
1349 a module containing a function with multiple entry points, this
1350 will appear as several functions with the same formal namespace. */
1353 /* A list of all alternate entry points to this procedure (or NULL). */
1354 gfc_entry_list *entries;
1356 /* A list of USE statements in this namespace. */
1357 gfc_use_list *use_stmts;
1359 /* Set to 1 if namespace is a BLOCK DATA program unit. */
1362 /* Set to 1 if namespace is an interface body with "IMPORT" used. */
1365 /* Set to 1 if resolved has been called for this namespace. */
1368 /* Set to 1 if code has been generated for this namespace. */
1373 extern gfc_namespace *gfc_current_ns;
1374 extern gfc_namespace *gfc_global_ns_list;
1376 /* Global symbols are symbols of global scope. Currently we only use
1377 this to detect collisions already when parsing.
1378 TODO: Extend to verify procedure calls. */
1380 enum gfc_symbol_type
1382 GSYM_UNKNOWN=1, GSYM_PROGRAM, GSYM_FUNCTION, GSYM_SUBROUTINE,
1383 GSYM_MODULE, GSYM_COMMON, GSYM_BLOCK_DATA
1386 typedef struct gfc_gsymbol
1388 BBT_HEADER(gfc_gsymbol);
1391 const char *sym_name;
1392 const char *mod_name;
1393 const char *binding_label;
1394 enum gfc_symbol_type type;
1402 extern gfc_gsymbol *gfc_gsym_root;
1404 /* Information on interfaces being built. */
1407 interface_type type;
1411 gfc_intrinsic_op op;
1415 extern gfc_interface_info current_interface;
1418 /* Array reference. */
1420 enum gfc_array_ref_dimen_type
1422 DIMEN_ELEMENT = 1, DIMEN_RANGE, DIMEN_VECTOR, DIMEN_UNKNOWN
1425 typedef struct gfc_array_ref
1428 int dimen; /* # of components in the reference */
1432 locus c_where[GFC_MAX_DIMENSIONS]; /* All expressions can be NULL */
1433 struct gfc_expr *start[GFC_MAX_DIMENSIONS], *end[GFC_MAX_DIMENSIONS],
1434 *stride[GFC_MAX_DIMENSIONS];
1436 enum gfc_array_ref_dimen_type dimen_type[GFC_MAX_DIMENSIONS];
1438 struct gfc_expr *offset;
1442 #define gfc_get_array_ref() XCNEW (gfc_array_ref)
1445 /* Component reference nodes. A variable is stored as an expression
1446 node that points to the base symbol. After that, a singly linked
1447 list of component reference nodes gives the variable's complete
1448 resolution. The array_ref component may be present and comes
1449 before the component component. */
1452 { REF_ARRAY, REF_COMPONENT, REF_SUBSTRING }
1455 typedef struct gfc_ref
1461 struct gfc_array_ref ar;
1465 gfc_component *component;
1472 struct gfc_expr *start, *end; /* Substring */
1473 gfc_charlen *length;
1480 struct gfc_ref *next;
1484 #define gfc_get_ref() XCNEW (gfc_ref)
1487 /* Structures representing intrinsic symbols and their arguments lists. */
1488 typedef struct gfc_intrinsic_arg
1490 char name[GFC_MAX_SYMBOL_LEN + 1];
1494 ENUM_BITFIELD (sym_intent) intent:2;
1495 gfc_actual_arglist *actual;
1497 struct gfc_intrinsic_arg *next;
1503 /* Specifies the various kinds of check functions used to verify the
1504 argument lists of intrinsic functions. fX with X an integer refer
1505 to check functions of intrinsics with X arguments. f1m is used for
1506 the MAX and MIN intrinsics which can have an arbitrary number of
1507 arguments, f3ml is used for the MINLOC and MAXLOC intrinsics as
1508 these have special semantics. */
1512 gfc_try (*f0)(void);
1513 gfc_try (*f1)(struct gfc_expr *);
1514 gfc_try (*f1m)(gfc_actual_arglist *);
1515 gfc_try (*f2)(struct gfc_expr *, struct gfc_expr *);
1516 gfc_try (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1517 gfc_try (*f3ml)(gfc_actual_arglist *);
1518 gfc_try (*f3red)(gfc_actual_arglist *);
1519 gfc_try (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1521 gfc_try (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1522 struct gfc_expr *, struct gfc_expr *);
1526 /* Like gfc_check_f, these specify the type of the simplification
1527 function associated with an intrinsic. The fX are just like in
1528 gfc_check_f. cc is used for type conversion functions. */
1532 struct gfc_expr *(*f0)(void);
1533 struct gfc_expr *(*f1)(struct gfc_expr *);
1534 struct gfc_expr *(*f2)(struct gfc_expr *, struct gfc_expr *);
1535 struct gfc_expr *(*f3)(struct gfc_expr *, struct gfc_expr *,
1537 struct gfc_expr *(*f4)(struct gfc_expr *, struct gfc_expr *,
1538 struct gfc_expr *, struct gfc_expr *);
1539 struct gfc_expr *(*f5)(struct gfc_expr *, struct gfc_expr *,
1540 struct gfc_expr *, struct gfc_expr *,
1542 struct gfc_expr *(*cc)(struct gfc_expr *, bt, int);
1546 /* Again like gfc_check_f, these specify the type of the resolution
1547 function associated with an intrinsic. The fX are just like in
1548 gfc_check_f. f1m is used for MIN and MAX, s1 is used for abort(). */
1552 void (*f0)(struct gfc_expr *);
1553 void (*f1)(struct gfc_expr *, struct gfc_expr *);
1554 void (*f1m)(struct gfc_expr *, struct gfc_actual_arglist *);
1555 void (*f2)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1556 void (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1558 void (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1559 struct gfc_expr *, struct gfc_expr *);
1560 void (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1561 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1562 void (*s1)(struct gfc_code *);
1567 typedef struct gfc_intrinsic_sym
1569 const char *name, *lib_name;
1570 gfc_intrinsic_arg *formal;
1572 unsigned elemental:1, inquiry:1, transformational:1, pure:1,
1573 generic:1, specific:1, actual_ok:1, noreturn:1, conversion:1;
1577 gfc_simplify_f simplify;
1579 gfc_resolve_f resolve;
1580 struct gfc_intrinsic_sym *specific_head, *next;
1587 /* Expression nodes. The expression node types deserve explanations,
1588 since the last couple can be easily misconstrued:
1590 EXPR_OP Operator node pointing to one or two other nodes
1591 EXPR_FUNCTION Function call, symbol points to function's name
1592 EXPR_CONSTANT A scalar constant: Logical, String, Real, Int or Complex
1593 EXPR_VARIABLE An Lvalue with a root symbol and possible reference list
1594 which expresses structure, array and substring refs.
1595 EXPR_NULL The NULL pointer value (which also has a basic type).
1596 EXPR_SUBSTRING A substring of a constant string
1597 EXPR_STRUCTURE A structure constructor
1598 EXPR_ARRAY An array constructor.
1599 EXPR_COMPCALL Function (or subroutine) call of a procedure pointer
1600 component or type-bound procedure. */
1606 # if MPC_VERSION >= MPC_VERSION_NUM(0,6,1)
1607 # define HAVE_mpc_pow
1610 #define mpc_realref(X) ((X).r)
1611 #define mpc_imagref(X) ((X).i)
1613 #define GFC_RND_MODE GMP_RNDN
1614 #define GFC_MPC_RND_MODE MPC_RNDNN
1616 typedef struct gfc_expr
1620 gfc_typespec ts; /* These two refer to the overall expression */
1623 mpz_t *shape; /* Can be NULL if shape is unknown at compile time */
1625 /* Nonnull for functions and structure constructors, may also used to hold the
1626 base-object for component calls. */
1627 gfc_symtree *symtree;
1633 /* True if the expression is a call to a function that returns an array,
1634 and if we have decided not to allocate temporary data for that array.
1635 is_boz is true if the integer is regarded as BOZ bitpatten and is_snan
1636 denotes a signalling not-a-number. */
1637 unsigned int inline_noncopying_intrinsic : 1, is_boz : 1, is_snan : 1;
1639 /* Sometimes, when an error has been emitted, it is necessary to prevent
1640 it from recurring. */
1641 unsigned int error : 1;
1643 /* Mark and expression where a user operator has been substituted by
1644 a function call in interface.c(gfc_extend_expr). */
1645 unsigned int user_operator : 1;
1647 /* Used to quickly find a given constructor by its offset. */
1648 splay_tree con_by_offset;
1650 /* If an expression comes from a Hollerith constant or compile-time
1651 evaluation of a transfer statement, it may have a prescribed target-
1652 memory representation, and these cannot always be backformed from
1683 gfc_intrinsic_op op;
1685 struct gfc_expr *op1, *op2;
1691 gfc_actual_arglist *actual;
1692 const char *name; /* Points to the ultimate name of the function */
1693 gfc_intrinsic_sym *isym;
1700 gfc_actual_arglist* actual;
1702 /* Base-object, whose component was called. NULL means that it should
1703 be taken from symtree/ref. */
1704 struct gfc_expr* base_object;
1705 gfc_typebound_proc* tbp; /* Should overlap with esym. */
1707 /* For type-bound operators, we want to call PASS procedures but already
1708 have the full arglist; mark this, so that it is not extended by the
1710 unsigned ignore_pass:1;
1712 /* Do assign-calls rather than calls, that is appropriate dependency
1725 struct gfc_constructor *constructor;
1733 #define gfc_get_shape(rank) ((mpz_t *) gfc_getmem((rank)*sizeof(mpz_t)))
1735 /* Structures for information associated with different kinds of
1736 numbers. The first set of integer parameters define all there is
1737 to know about a particular kind. The rest of the elements are
1738 computed from the first elements. */
1742 /* Values really representable by the target. */
1743 mpz_t huge, pedantic_min_int, min_int;
1745 int kind, radix, digits, bit_size, range;
1747 /* True if the C type of the given name maps to this precision.
1748 Note that more than one bit can be set. */
1749 unsigned int c_char : 1;
1750 unsigned int c_short : 1;
1751 unsigned int c_int : 1;
1752 unsigned int c_long : 1;
1753 unsigned int c_long_long : 1;
1757 extern gfc_integer_info gfc_integer_kinds[];
1764 /* True if the C++ type bool, C99 type _Bool, maps to this precision. */
1765 unsigned int c_bool : 1;
1769 extern gfc_logical_info gfc_logical_kinds[];
1774 mpfr_t epsilon, huge, tiny, subnormal;
1775 int kind, radix, digits, min_exponent, max_exponent;
1776 int range, precision;
1778 /* The precision of the type as reported by GET_MODE_PRECISION. */
1781 /* True if the C type of the given name maps to this precision.
1782 Note that more than one bit can be set. */
1783 unsigned int c_float : 1;
1784 unsigned int c_double : 1;
1785 unsigned int c_long_double : 1;
1789 extern gfc_real_info gfc_real_kinds[];
1798 extern gfc_character_info gfc_character_kinds[];
1801 /* Equivalence structures. Equivalent lvalues are linked along the
1802 *eq pointer, equivalence sets are strung along the *next node. */
1803 typedef struct gfc_equiv
1805 struct gfc_equiv *next, *eq;
1812 #define gfc_get_equiv() XCNEW (gfc_equiv)
1814 /* Holds a single equivalence member after processing. */
1815 typedef struct gfc_equiv_info
1818 HOST_WIDE_INT offset;
1819 HOST_WIDE_INT length;
1820 struct gfc_equiv_info *next;
1823 /* Holds equivalence groups, after they have been processed. */
1824 typedef struct gfc_equiv_list
1826 gfc_equiv_info *equiv;
1827 struct gfc_equiv_list *next;
1830 /* gfc_case stores the selector list of a case statement. The *low
1831 and *high pointers can point to the same expression in the case of
1832 a single value. If *high is NULL, the selection is from *low
1833 upwards, if *low is NULL the selection is *high downwards.
1835 This structure has separate fields to allow single and double linked
1836 lists of CASEs at the same time. The singe linked list along the NEXT
1837 field is a list of cases for a single CASE label. The double linked
1838 list along the LEFT/RIGHT fields is used to detect overlap and to
1839 build a table of the cases for SELECT constructs with a CHARACTER
1842 typedef struct gfc_case
1844 /* Where we saw this case. */
1848 /* Case range values. If (low == high), it's a single value. If one of
1849 the labels is NULL, it's an unbounded case. If both are NULL, this
1850 represents the default case. */
1851 gfc_expr *low, *high;
1853 /* Next case label in the list of cases for a single CASE label. */
1854 struct gfc_case *next;
1856 /* Used for detecting overlap, and for code generation. */
1857 struct gfc_case *left, *right;
1859 /* True if this case label can never be matched. */
1864 #define gfc_get_case() XCNEW (gfc_case)
1869 gfc_expr *var, *start, *end, *step;
1873 #define gfc_get_iterator() XCNEW (gfc_iterator)
1876 /* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */
1878 typedef struct gfc_alloc
1881 struct gfc_alloc *next;
1885 #define gfc_get_alloc() XCNEW (gfc_alloc)
1890 gfc_expr *unit, *file, *status, *access, *form, *recl,
1891 *blank, *position, *action, *delim, *pad, *iostat, *iomsg, *convert,
1892 *decimal, *encoding, *round, *sign, *asynchronous, *id, *newunit;
1900 gfc_expr *unit, *status, *iostat, *iomsg;
1908 gfc_expr *unit, *iostat, *iomsg;
1916 gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named,
1917 *name, *access, *sequential, *direct, *form, *formatted,
1918 *unformatted, *recl, *nextrec, *blank, *position, *action, *read,
1919 *write, *readwrite, *delim, *pad, *iolength, *iomsg, *convert, *strm_pos,
1920 *asynchronous, *decimal, *encoding, *pending, *round, *sign, *size, *id;
1930 gfc_expr *unit, *iostat, *iomsg, *id;
1931 gfc_st_label *err, *end, *eor;
1938 gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size, *iomsg,
1939 *id, *pos, *asynchronous, *blank, *decimal, *delim, *pad, *round,
1940 *sign, *extra_comma;
1942 gfc_symbol *namelist;
1943 /* A format_label of `format_asterisk' indicates the "*" format */
1944 gfc_st_label *format_label;
1945 gfc_st_label *err, *end, *eor;
1947 locus eor_where, end_where, err_where;
1952 typedef struct gfc_forall_iterator
1954 gfc_expr *var, *start, *end, *stride;
1955 struct gfc_forall_iterator *next;
1957 gfc_forall_iterator;
1960 /* Executable statements that fill gfc_code structures. */
1963 EXEC_NOP = 1, EXEC_END_BLOCK, EXEC_ASSIGN, EXEC_LABEL_ASSIGN,
1964 EXEC_POINTER_ASSIGN,
1965 EXEC_GOTO, EXEC_CALL, EXEC_COMPCALL, EXEC_ASSIGN_CALL, EXEC_RETURN,
1966 EXEC_ENTRY, EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE, EXEC_INIT_ASSIGN,
1967 EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_WHILE, EXEC_SELECT,
1968 EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT, EXEC_CALL_PPC,
1969 EXEC_ALLOCATE, EXEC_DEALLOCATE, EXEC_END_PROCEDURE,
1970 EXEC_OPEN, EXEC_CLOSE, EXEC_WAIT,
1971 EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END,
1972 EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND, EXEC_FLUSH,
1973 EXEC_OMP_CRITICAL, EXEC_OMP_DO, EXEC_OMP_FLUSH, EXEC_OMP_MASTER,
1974 EXEC_OMP_ORDERED, EXEC_OMP_PARALLEL, EXEC_OMP_PARALLEL_DO,
1975 EXEC_OMP_PARALLEL_SECTIONS, EXEC_OMP_PARALLEL_WORKSHARE,
1976 EXEC_OMP_SECTIONS, EXEC_OMP_SINGLE, EXEC_OMP_WORKSHARE,
1977 EXEC_OMP_ATOMIC, EXEC_OMP_BARRIER, EXEC_OMP_END_NOWAIT,
1978 EXEC_OMP_END_SINGLE, EXEC_OMP_TASK, EXEC_OMP_TASKWAIT
1982 typedef struct gfc_code
1986 struct gfc_code *block, *next;
1989 gfc_st_label *here, *label1, *label2, *label3;
1990 gfc_symtree *symtree;
1991 gfc_expr *expr1, *expr2, *expr3;
1992 /* A name isn't sufficient to identify a subroutine, we need the actual
1993 symbol for the interface definition.
1994 const char *sub_name; */
1995 gfc_symbol *resolved_sym;
1996 gfc_intrinsic_sym *resolved_isym;
2000 gfc_actual_arglist *actual;
2001 gfc_case *case_list;
2002 gfc_iterator *iterator;
2003 gfc_alloc *alloc_list;
2006 gfc_filepos *filepos;
2007 gfc_inquire *inquire;
2010 gfc_forall_iterator *forall_iterator;
2011 struct gfc_code *whichloop;
2013 gfc_entry_list *entry;
2014 gfc_omp_clauses *omp_clauses;
2015 const char *omp_name;
2016 gfc_namelist *omp_namelist;
2019 ext; /* Points to additional structures required by statement */
2021 /* Backend_decl is used for cycle and break labels in do loops, and
2022 probably for other constructs as well, once we translate them. */
2028 /* Storage for DATA statements. */
2029 typedef struct gfc_data_variable
2033 struct gfc_data_variable *list, *next;
2038 typedef struct gfc_data_value
2042 struct gfc_data_value *next;
2047 typedef struct gfc_data
2049 gfc_data_variable *var;
2050 gfc_data_value *value;
2053 struct gfc_data *next;
2058 /* Structure for holding compile options */
2062 gfc_source_form source_form;
2063 /* Maximum line lengths in fixed- and free-form source, respectively.
2064 When fixed_line_length or free_line_length are 0, the whole line is used,
2065 regardless of length.
2067 If the user requests a fixed_line_length <7 then gfc_init_options()
2068 emits a fatal error. */
2069 int fixed_line_length;
2070 int free_line_length;
2071 /* Maximum number of continuation lines in fixed- and free-form source,
2073 int max_continue_fixed;
2074 int max_continue_free;
2075 int max_identifier_length;
2076 int dump_parse_tree;
2080 int warn_conversion;
2081 int warn_implicit_interface;
2082 int warn_line_truncation;
2083 int warn_surprising;
2086 int warn_intrinsic_shadow;
2087 int warn_intrinsics_std;
2088 int warn_character_truncation;
2089 int warn_array_temp;
2090 int warn_align_commons;
2093 int flag_all_intrinsics;
2094 int flag_default_double;
2095 int flag_default_integer;
2096 int flag_default_real;
2098 int flag_underscoring;
2099 int flag_second_underscore;
2100 int flag_implicit_none;
2101 int flag_max_stack_var_size;
2102 int flag_max_array_constructor;
2103 int flag_range_check;
2104 int flag_pack_derived;
2105 int flag_repack_arrays;
2106 int flag_preprocessed;
2111 int flag_allow_leading_underscore;
2113 int flag_external_blas;
2114 int blas_matmul_limit;
2115 int flag_cray_pointer;
2119 int flag_module_private;
2121 int flag_init_local_zero;
2122 int flag_init_integer;
2123 int flag_init_integer_value;
2125 int flag_init_logical;
2126 int flag_init_character;
2127 char flag_init_character_value;
2128 int flag_align_commons;
2129 int flag_whole_file;
2138 int max_subrecord_length;
2142 extern gfc_option_t gfc_option;
2144 /* Constructor nodes for array and structure constructors. */
2145 typedef struct gfc_constructor
2148 gfc_iterator *iterator;
2150 struct gfc_constructor *next;
2153 mpz_t offset; /* Record the offset of array element which appears in
2154 data statement like "data a(5)/4/". */
2155 gfc_component *component; /* Record the component being initialized. */
2158 mpz_t repeat; /* Record the repeat number of initial values in data
2159 statement like "data a/5*10/". */
2164 typedef struct iterator_stack
2166 gfc_symtree *variable;
2168 struct iterator_stack *prev;
2171 extern iterator_stack *iter_stack;
2174 /* Node in the linked list used for storing finalizer procedures. */
2176 typedef struct gfc_finalizer
2178 struct gfc_finalizer* next;
2179 locus where; /* Where the FINAL declaration occurred. */
2181 /* Up to resolution, we want the gfc_symbol, there we lookup the corresponding
2182 symtree and later need only that. This way, we can access and call the
2183 finalizers from every context as they should be "always accessible". I
2184 don't make this a union because we need the information whether proc_sym is
2185 still referenced or not for dereferencing it on deleting a gfc_finalizer
2187 gfc_symbol* proc_sym;
2188 gfc_symtree* proc_tree;
2191 #define gfc_get_finalizer() XCNEW (gfc_finalizer)
2194 /************************ Function prototypes *************************/
2197 bool gfc_in_match_data (void);
2198 match gfc_match_char_spec (gfc_typespec *);
2201 void gfc_scanner_done_1 (void);
2202 void gfc_scanner_init_1 (void);
2204 void gfc_add_include_path (const char *, bool, bool);
2205 void gfc_add_intrinsic_modules_path (const char *);
2206 void gfc_release_include_path (void);
2207 FILE *gfc_open_included_file (const char *, bool, bool);
2208 FILE *gfc_open_intrinsic_module (const char *);
2210 int gfc_at_end (void);
2211 int gfc_at_eof (void);
2212 int gfc_at_bol (void);
2213 int gfc_at_eol (void);
2214 void gfc_advance_line (void);
2215 int gfc_check_include (void);
2216 int gfc_define_undef_line (void);
2218 int gfc_wide_is_printable (gfc_char_t);
2219 int gfc_wide_is_digit (gfc_char_t);
2220 int gfc_wide_fits_in_byte (gfc_char_t);
2221 gfc_char_t gfc_wide_tolower (gfc_char_t);
2222 gfc_char_t gfc_wide_toupper (gfc_char_t);
2223 size_t gfc_wide_strlen (const gfc_char_t *);
2224 int gfc_wide_strncasecmp (const gfc_char_t *, const char *, size_t);
2225 gfc_char_t *gfc_wide_memset (gfc_char_t *, gfc_char_t, size_t);
2226 char *gfc_widechar_to_char (const gfc_char_t *, int);
2227 gfc_char_t *gfc_char_to_widechar (const char *);
2229 #define gfc_get_wide_string(n) XCNEWVEC (gfc_char_t, n)
2231 void gfc_skip_comments (void);
2232 gfc_char_t gfc_next_char_literal (int);
2233 gfc_char_t gfc_next_char (void);
2234 char gfc_next_ascii_char (void);
2235 gfc_char_t gfc_peek_char (void);
2236 char gfc_peek_ascii_char (void);
2237 void gfc_error_recovery (void);
2238 void gfc_gobble_whitespace (void);
2239 gfc_try gfc_new_file (void);
2240 const char * gfc_read_orig_filename (const char *, const char **);
2242 extern gfc_source_form gfc_current_form;
2243 extern const char *gfc_source_file;
2244 extern locus gfc_current_locus;
2246 void gfc_start_source_files (void);
2247 void gfc_end_source_files (void);
2250 void *gfc_getmem (size_t) ATTRIBUTE_MALLOC;
2251 void gfc_free (void *);
2252 int gfc_terminal_width (void);
2253 void gfc_clear_ts (gfc_typespec *);
2254 FILE *gfc_open_file (const char *);
2255 const char *gfc_basic_typename (bt);
2256 const char *gfc_typename (gfc_typespec *);
2257 const char *gfc_op2string (gfc_intrinsic_op);
2258 const char *gfc_code2string (const mstring *, int);
2259 int gfc_string2code (const mstring *, const char *);
2260 const char *gfc_intent_string (sym_intent);
2262 void gfc_init_1 (void);
2263 void gfc_init_2 (void);
2264 void gfc_done_1 (void);
2265 void gfc_done_2 (void);
2267 int get_c_kind (const char *, CInteropKind_t *);
2270 unsigned int gfc_init_options (unsigned int, const char **);
2271 int gfc_handle_option (size_t, const char *, int);
2272 bool gfc_post_options (const char **);
2275 void gfc_maybe_initialize_eh (void);
2278 const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1;
2279 bool gfc_find_sym_in_expr (gfc_symbol *, gfc_expr *);
2283 typedef struct gfc_error_buf
2286 size_t allocated, index;
2290 void gfc_error_init_1 (void);
2291 void gfc_buffer_error (int);
2293 const char *gfc_print_wide_char (gfc_char_t);
2295 void gfc_warning (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2296 void gfc_warning_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2297 void gfc_clear_warning (void);
2298 void gfc_warning_check (void);
2300 void gfc_error (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2301 void gfc_error_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2302 void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
2303 void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
2304 void gfc_clear_error (void);
2305 int gfc_error_check (void);
2306 int gfc_error_flag_test (void);
2308 notification gfc_notification_std (int);
2309 gfc_try gfc_notify_std (int, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
2311 /* A general purpose syntax error. */
2312 #define gfc_syntax_error(ST) \
2313 gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST));
2315 void gfc_push_error (gfc_error_buf *);
2316 void gfc_pop_error (gfc_error_buf *);
2317 void gfc_free_error (gfc_error_buf *);
2319 void gfc_get_errors (int *, int *);
2320 void gfc_errors_to_warnings (int);
2323 void gfc_arith_init_1 (void);
2324 void gfc_arith_done_1 (void);
2325 arith gfc_check_integer_range (mpz_t p, int kind);
2326 bool gfc_check_character_range (gfc_char_t, int);
2329 gfc_try gfc_check_any_c_kind (gfc_typespec *);
2330 int gfc_validate_kind (bt, int, bool);
2331 int gfc_get_int_kind_from_width_isofortranenv (int size);
2332 int gfc_get_real_kind_from_width_isofortranenv (int size);
2333 extern int gfc_index_integer_kind;
2334 extern int gfc_default_integer_kind;
2335 extern int gfc_max_integer_kind;
2336 extern int gfc_default_real_kind;
2337 extern int gfc_default_double_kind;
2338 extern int gfc_default_character_kind;
2339 extern int gfc_default_logical_kind;
2340 extern int gfc_default_complex_kind;
2341 extern int gfc_c_int_kind;
2342 extern int gfc_intio_kind;
2343 extern int gfc_charlen_int_kind;
2344 extern int gfc_numeric_storage_size;
2345 extern int gfc_character_storage_size;
2348 void gfc_clear_new_implicit (void);
2349 gfc_try gfc_add_new_implicit_range (int, int);
2350 gfc_try gfc_merge_new_implicit (gfc_typespec *);
2351 void gfc_set_implicit_none (void);
2352 void gfc_check_function_type (gfc_namespace *);
2353 bool gfc_is_intrinsic_typename (const char *);
2355 gfc_typespec *gfc_get_default_type (const char *, gfc_namespace *);
2356 gfc_try gfc_set_default_type (gfc_symbol *, int, gfc_namespace *);
2358 void gfc_set_sym_referenced (gfc_symbol *);
2360 gfc_try gfc_add_attribute (symbol_attribute *, locus *);
2361 gfc_try gfc_add_ext_attribute (symbol_attribute *, ext_attr_id_t, locus *);
2362 gfc_try gfc_add_allocatable (symbol_attribute *, locus *);
2363 gfc_try gfc_add_dimension (symbol_attribute *, const char *, locus *);
2364 gfc_try gfc_add_external (symbol_attribute *, locus *);
2365 gfc_try gfc_add_intrinsic (symbol_attribute *, locus *);
2366 gfc_try gfc_add_optional (symbol_attribute *, locus *);
2367 gfc_try gfc_add_pointer (symbol_attribute *, locus *);
2368 gfc_try gfc_add_cray_pointer (symbol_attribute *, locus *);
2369 gfc_try gfc_add_cray_pointee (symbol_attribute *, locus *);
2370 match gfc_mod_pointee_as (gfc_array_spec *);
2371 gfc_try gfc_add_protected (symbol_attribute *, const char *, locus *);
2372 gfc_try gfc_add_result (symbol_attribute *, const char *, locus *);
2373 gfc_try gfc_add_save (symbol_attribute *, const char *, locus *);
2374 gfc_try gfc_add_threadprivate (symbol_attribute *, const char *, locus *);
2375 gfc_try gfc_add_saved_common (symbol_attribute *, locus *);
2376 gfc_try gfc_add_target (symbol_attribute *, locus *);
2377 gfc_try gfc_add_dummy (symbol_attribute *, const char *, locus *);
2378 gfc_try gfc_add_generic (symbol_attribute *, const char *, locus *);
2379 gfc_try gfc_add_common (symbol_attribute *, locus *);
2380 gfc_try gfc_add_in_common (symbol_attribute *, const char *, locus *);
2381 gfc_try gfc_add_in_equivalence (symbol_attribute *, const char *, locus *);
2382 gfc_try gfc_add_data (symbol_attribute *, const char *, locus *);
2383 gfc_try gfc_add_in_namelist (symbol_attribute *, const char *, locus *);
2384 gfc_try gfc_add_sequence (symbol_attribute *, const char *, locus *);
2385 gfc_try gfc_add_elemental (symbol_attribute *, locus *);
2386 gfc_try gfc_add_pure (symbol_attribute *, locus *);
2387 gfc_try gfc_add_recursive (symbol_attribute *, locus *);
2388 gfc_try gfc_add_function (symbol_attribute *, const char *, locus *);
2389 gfc_try gfc_add_subroutine (symbol_attribute *, const char *, locus *);
2390 gfc_try gfc_add_volatile (symbol_attribute *, const char *, locus *);
2391 gfc_try gfc_add_proc (symbol_attribute *attr, const char *name, locus *where);
2392 gfc_try gfc_add_abstract (symbol_attribute* attr, locus* where);
2394 gfc_try gfc_add_access (symbol_attribute *, gfc_access, const char *, locus *);
2395 gfc_try gfc_add_is_bind_c (symbol_attribute *, const char *, locus *, int);
2396 gfc_try gfc_add_extension (symbol_attribute *, locus *);
2397 gfc_try gfc_add_value (symbol_attribute *, const char *, locus *);
2398 gfc_try gfc_add_flavor (symbol_attribute *, sym_flavor, const char *, locus *);
2399 gfc_try gfc_add_entry (symbol_attribute *, const char *, locus *);
2400 gfc_try gfc_add_procedure (symbol_attribute *, procedure_type,
2401 const char *, locus *);
2402 gfc_try gfc_add_intent (symbol_attribute *, sym_intent, locus *);
2403 gfc_try gfc_add_explicit_interface (gfc_symbol *, ifsrc,
2404 gfc_formal_arglist *, locus *);
2405 gfc_try gfc_add_type (gfc_symbol *, gfc_typespec *, locus *);
2407 void gfc_clear_attr (symbol_attribute *);
2408 gfc_try gfc_missing_attr (symbol_attribute *, locus *);
2409 gfc_try gfc_copy_attr (symbol_attribute *, symbol_attribute *, locus *);
2411 gfc_try gfc_add_component (gfc_symbol *, const char *, gfc_component **);
2412 gfc_symbol *gfc_use_derived (gfc_symbol *);
2413 gfc_symtree *gfc_use_derived_tree (gfc_symtree *);
2414 gfc_component *gfc_find_component (gfc_symbol *, const char *, bool, bool);
2416 gfc_st_label *gfc_get_st_label (int);
2417 void gfc_free_st_label (gfc_st_label *);
2418 void gfc_define_st_label (gfc_st_label *, gfc_sl_type, locus *);
2419 gfc_try gfc_reference_st_label (gfc_st_label *, gfc_sl_type);
2421 gfc_expr * gfc_lval_expr_from_sym (gfc_symbol *);
2423 gfc_namespace *gfc_get_namespace (gfc_namespace *, int);
2424 gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *);
2425 gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *);
2426 void gfc_delete_symtree (gfc_symtree **, const char *);
2427 gfc_symtree *gfc_get_unique_symtree (gfc_namespace *);
2428 gfc_user_op *gfc_get_uop (const char *);
2429 gfc_user_op *gfc_find_uop (const char *, gfc_namespace *);
2430 void gfc_free_symbol (gfc_symbol *);
2431 gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *);
2432 int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **);
2433 int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **);
2434 int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **);
2435 gfc_try verify_c_interop (gfc_typespec *);
2436 gfc_try verify_c_interop_param (gfc_symbol *);
2437 gfc_try verify_bind_c_sym (gfc_symbol *, gfc_typespec *, int, gfc_common_head *);
2438 gfc_try verify_bind_c_derived_type (gfc_symbol *);
2439 gfc_try verify_com_block_vars_c_interop (gfc_common_head *);
2440 void generate_isocbinding_symbol (const char *, iso_c_binding_symbol, const char *);
2441 gfc_symbol *get_iso_c_sym (gfc_symbol *, char *, char *, int);
2442 int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **, bool);
2443 int gfc_get_ha_symbol (const char *, gfc_symbol **);
2444 int gfc_get_ha_sym_tree (const char *, gfc_symtree **);
2446 int gfc_symbols_could_alias (gfc_symbol *, gfc_symbol *);
2448 void gfc_undo_symbols (void);
2449 void gfc_commit_symbols (void);
2450 void gfc_commit_symbol (gfc_symbol *);
2451 gfc_charlen *gfc_new_charlen (gfc_namespace *, gfc_charlen *);
2452 void gfc_free_charlen (gfc_charlen *, gfc_charlen *);
2453 void gfc_free_namespace (gfc_namespace *);
2455 void gfc_symbol_init_2 (void);
2456 void gfc_symbol_done_2 (void);
2458 void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *));
2459 void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *));
2460 void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *));
2461 void gfc_save_all (gfc_namespace *);
2463 void gfc_symbol_state (void);
2464 void gfc_free_dt_list (void);
2467 gfc_gsymbol *gfc_get_gsymbol (const char *);
2468 gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *);
2470 gfc_typebound_proc* gfc_get_typebound_proc (void);
2471 gfc_symbol* gfc_get_derived_super_type (gfc_symbol*);
2472 gfc_symtree* gfc_find_typebound_proc (gfc_symbol*, gfc_try*,
2473 const char*, bool, locus*);
2474 gfc_symtree* gfc_find_typebound_user_op (gfc_symbol*, gfc_try*,
2475 const char*, bool, locus*);
2476 gfc_typebound_proc* gfc_find_typebound_intrinsic_op (gfc_symbol*, gfc_try*,
2477 gfc_intrinsic_op, bool,
2479 gfc_symtree* gfc_get_tbp_symtree (gfc_symtree**, const char*);
2481 void gfc_copy_formal_args (gfc_symbol *, gfc_symbol *);
2482 void gfc_copy_formal_args_intr (gfc_symbol *, gfc_intrinsic_sym *);
2483 void gfc_copy_formal_args_ppc (gfc_component *, gfc_symbol *);
2485 void gfc_free_finalizer (gfc_finalizer *el); /* Needed in resolve.c, too */
2487 gfc_try gfc_check_symbol_typed (gfc_symbol*, gfc_namespace*, bool, locus);
2490 extern int gfc_init_expr;
2492 /* Given a symbol that we have decided is intrinsic, mark it as such
2493 by placing it into a special module that is otherwise impossible to
2496 #define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)")
2498 void gfc_intrinsic_init_1 (void);
2499 void gfc_intrinsic_done_1 (void);
2501 char gfc_type_letter (bt);
2502 gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *);
2503 gfc_try gfc_convert_type (gfc_expr *, gfc_typespec *, int);
2504 gfc_try gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int);
2505 gfc_try gfc_convert_chartype (gfc_expr *, gfc_typespec *);
2506 int gfc_generic_intrinsic (const char *);
2507 int gfc_specific_intrinsic (const char *);
2508 bool gfc_is_intrinsic (gfc_symbol*, int, locus);
2509 int gfc_intrinsic_actual_ok (const char *, const bool);
2510 gfc_intrinsic_sym *gfc_find_function (const char *);
2511 gfc_intrinsic_sym *gfc_find_subroutine (const char *);
2513 match gfc_intrinsic_func_interface (gfc_expr *, int);
2514 match gfc_intrinsic_sub_interface (gfc_code *, int);
2516 void gfc_warn_intrinsic_shadow (const gfc_symbol*, bool, bool);
2517 gfc_try gfc_check_intrinsic_standard (const gfc_intrinsic_sym*, const char**,
2520 /* match.c -- FIXME */
2521 void gfc_free_iterator (gfc_iterator *, int);
2522 void gfc_free_forall_iterator (gfc_forall_iterator *);
2523 void gfc_free_alloc_list (gfc_alloc *);
2524 void gfc_free_namelist (gfc_namelist *);
2525 void gfc_free_equiv (gfc_equiv *);
2526 void gfc_free_data (gfc_data *);
2527 void gfc_free_case_list (gfc_case *);
2529 /* matchexp.c -- FIXME too? */
2530 gfc_expr *gfc_get_parentheses (gfc_expr *);
2533 void gfc_free_omp_clauses (gfc_omp_clauses *);
2534 void gfc_resolve_omp_directive (gfc_code *, gfc_namespace *);
2535 void gfc_resolve_do_iterator (gfc_code *, gfc_symbol *);
2536 void gfc_resolve_omp_parallel_blocks (gfc_code *, gfc_namespace *);
2537 void gfc_resolve_omp_do_blocks (gfc_code *, gfc_namespace *);
2540 void gfc_free_actual_arglist (gfc_actual_arglist *);
2541 gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *);
2542 const char *gfc_extract_int (gfc_expr *, int *);
2543 gfc_expr *gfc_expr_to_initialize (gfc_expr *);
2544 bool is_subref_array (gfc_expr *);
2546 gfc_expr *gfc_build_conversion (gfc_expr *);
2547 void gfc_free_ref_list (gfc_ref *);
2548 void gfc_type_convert_binary (gfc_expr *);
2549 int gfc_is_constant_expr (gfc_expr *);
2550 gfc_try gfc_simplify_expr (gfc_expr *, int);
2551 int gfc_has_vector_index (gfc_expr *);
2553 gfc_expr *gfc_get_expr (void);
2554 void gfc_free_expr (gfc_expr *);
2555 void gfc_replace_expr (gfc_expr *, gfc_expr *);
2556 gfc_expr *gfc_int_expr (int);
2557 gfc_expr *gfc_logical_expr (int, locus *);
2558 mpz_t *gfc_copy_shape (mpz_t *, int);
2559 mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *);
2560 gfc_expr *gfc_copy_expr (gfc_expr *);
2561 gfc_ref* gfc_copy_ref (gfc_ref*);
2563 gfc_try gfc_specification_expr (gfc_expr *);
2565 int gfc_numeric_ts (gfc_typespec *);
2566 int gfc_kind_max (gfc_expr *, gfc_expr *);
2568 gfc_try gfc_check_conformance (gfc_expr *, gfc_expr *, const char *, ...) ATTRIBUTE_PRINTF_3;
2569 gfc_try gfc_check_assign (gfc_expr *, gfc_expr *, int);
2570 gfc_try gfc_check_pointer_assign (gfc_expr *, gfc_expr *);
2571 gfc_try gfc_check_assign_symbol (gfc_symbol *, gfc_expr *);
2573 gfc_expr *gfc_default_initializer (gfc_typespec *);
2574 gfc_expr *gfc_get_variable_expr (gfc_symtree *);
2576 bool gfc_traverse_expr (gfc_expr *, gfc_symbol *,
2577 bool (*)(gfc_expr *, gfc_symbol *, int*),
2579 void gfc_expr_set_symbols_referenced (gfc_expr *);
2580 gfc_try gfc_expr_check_typed (gfc_expr*, gfc_namespace*, bool);
2581 void gfc_expr_replace_symbols (gfc_expr *, gfc_symbol *);
2582 void gfc_expr_replace_comp (gfc_expr *, gfc_component *);
2584 bool gfc_is_proc_ptr_comp (gfc_expr *, gfc_component **);
2587 extern gfc_code new_st;
2589 void gfc_clear_new_st (void);
2590 gfc_code *gfc_get_code (void);
2591 gfc_code *gfc_append_code (gfc_code *, gfc_code *);
2592 void gfc_free_statement (gfc_code *);
2593 void gfc_free_statements (gfc_code *);
2596 gfc_try gfc_resolve_expr (gfc_expr *);
2597 void gfc_resolve (gfc_namespace *);
2598 void gfc_resolve_blocks (gfc_code *, gfc_namespace *);
2599 int gfc_impure_variable (gfc_symbol *);
2600 int gfc_pure (gfc_symbol *);
2601 int gfc_elemental (gfc_symbol *);
2602 gfc_try gfc_resolve_iterator (gfc_iterator *, bool);
2603 gfc_try find_forall_index (gfc_expr *, gfc_symbol *, int);
2604 gfc_try gfc_resolve_index (gfc_expr *, int);
2605 gfc_try gfc_resolve_dim_arg (gfc_expr *);
2606 int gfc_is_formal_arg (void);
2607 void gfc_resolve_substring_charlen (gfc_expr *);
2608 match gfc_iso_c_sub_interface(gfc_code *, gfc_symbol *);
2612 void gfc_free_array_spec (gfc_array_spec *);
2613 gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *);
2615 gfc_try gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *);
2616 gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *);
2617 gfc_try gfc_resolve_array_spec (gfc_array_spec *, int);
2619 int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *);
2621 gfc_expr *gfc_start_constructor (bt, int, locus *);
2622 void gfc_append_constructor (gfc_expr *, gfc_expr *);
2623 void gfc_free_constructor (gfc_constructor *);
2624 void gfc_simplify_iterator_var (gfc_expr *);
2625 gfc_try gfc_expand_constructor (gfc_expr *);
2626 int gfc_constant_ac (gfc_expr *);
2627 int gfc_expanded_ac (gfc_expr *);
2628 gfc_try gfc_resolve_character_array_constructor (gfc_expr *);
2629 gfc_try gfc_resolve_array_constructor (gfc_expr *);
2630 gfc_try gfc_check_constructor_type (gfc_expr *);
2631 gfc_try gfc_check_iter_variable (gfc_expr *);
2632 gfc_try gfc_check_constructor (gfc_expr *, gfc_try (*)(gfc_expr *));
2633 gfc_constructor *gfc_copy_constructor (gfc_constructor *);
2634 gfc_expr *gfc_get_array_element (gfc_expr *, int);
2635 gfc_try gfc_array_size (gfc_expr *, mpz_t *);
2636 gfc_try gfc_array_dimen_size (gfc_expr *, int, mpz_t *);
2637 gfc_try gfc_array_ref_shape (gfc_array_ref *, mpz_t *);
2638 gfc_array_ref *gfc_find_array_ref (gfc_expr *);
2639 void gfc_insert_constructor (gfc_expr *, gfc_constructor *);
2640 gfc_constructor *gfc_get_constructor (void);
2641 tree gfc_conv_array_initializer (tree type, gfc_expr *);
2642 gfc_try spec_size (gfc_array_spec *, mpz_t *);
2643 gfc_try spec_dimen_size (gfc_array_spec *, int, mpz_t *);
2644 int gfc_is_compile_time_shape (gfc_array_spec *);
2646 gfc_try gfc_ref_dimen_size (gfc_array_ref *, int dimen, mpz_t *);
2649 /* interface.c -- FIXME: some of these should be in symbol.c */
2650 void gfc_free_interface (gfc_interface *);
2651 int gfc_compare_derived_types (gfc_symbol *, gfc_symbol *);
2652 int gfc_compare_types (gfc_typespec *, gfc_typespec *);
2653 int gfc_compare_interfaces (gfc_symbol*, gfc_symbol*, const char *, int, int,
2655 void gfc_check_interfaces (gfc_namespace *);
2656 void gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *);
2657 void gfc_ppc_use (gfc_component *, gfc_actual_arglist **, locus *);
2658 gfc_symbol *gfc_search_interface (gfc_interface *, int,
2659 gfc_actual_arglist **);
2660 gfc_try gfc_extend_expr (gfc_expr *, bool *);
2661 void gfc_free_formal_arglist (gfc_formal_arglist *);
2662 gfc_try gfc_extend_assign (gfc_code *, gfc_namespace *);
2663 gfc_try gfc_add_interface (gfc_symbol *);
2664 gfc_interface *gfc_current_interface_head (void);
2665 void gfc_set_current_interface_head (gfc_interface *);
2666 gfc_symtree* gfc_find_sym_in_symtree (gfc_symbol*);
2667 bool gfc_arglist_matches_symbol (gfc_actual_arglist**, gfc_symbol*);
2668 bool gfc_check_operator_interface (gfc_symbol*, gfc_intrinsic_op, locus);
2671 extern gfc_st_label format_asterisk;
2673 void gfc_free_open (gfc_open *);
2674 gfc_try gfc_resolve_open (gfc_open *);
2675 void gfc_free_close (gfc_close *);
2676 gfc_try gfc_resolve_close (gfc_close *);
2677 void gfc_free_filepos (gfc_filepos *);
2678 gfc_try gfc_resolve_filepos (gfc_filepos *);
2679 void gfc_free_inquire (gfc_inquire *);
2680 gfc_try gfc_resolve_inquire (gfc_inquire *);
2681 void gfc_free_dt (gfc_dt *);
2682 gfc_try gfc_resolve_dt (gfc_dt *, locus *);
2683 void gfc_free_wait (gfc_wait *);
2684 gfc_try gfc_resolve_wait (gfc_wait *);
2687 void gfc_module_init_2 (void);
2688 void gfc_module_done_2 (void);
2689 void gfc_dump_module (const char *, int);
2690 bool gfc_check_access (gfc_access, gfc_access);
2691 void gfc_free_use_stmts (gfc_use_list *);
2694 symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *);
2695 symbol_attribute gfc_expr_attr (gfc_expr *);
2696 match gfc_match_rvalue (gfc_expr **);
2697 match gfc_match_varspec (gfc_expr*, int, bool, bool);
2698 int gfc_check_digit (char, int);
2701 void gfc_generate_code (gfc_namespace *);
2702 void gfc_generate_module_code (gfc_namespace *);
2705 typedef int (*compare_fn) (void *, void *);
2706 void gfc_insert_bbt (void *, void *, compare_fn);
2707 void gfc_delete_bbt (void *, void *, compare_fn);
2709 /* dump-parse-tree.c */
2710 void gfc_dump_parse_tree (gfc_namespace *, FILE *);
2713 gfc_try gfc_parse_file (void);
2714 void gfc_global_used (gfc_gsymbol *, locus *);
2717 int gfc_dep_compare_expr (gfc_expr *, gfc_expr *);
2718 int gfc_is_data_pointer (gfc_expr *);
2721 gfc_try gfc_check_same_strlen (const gfc_expr*, const gfc_expr*, const char*);
2723 #endif /* GCC_GFORTRAN_H */